CN107996305A - A kind of Stevia seed method for culturing seedlings - Google Patents
A kind of Stevia seed method for culturing seedlings Download PDFInfo
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- CN107996305A CN107996305A CN201810082289.4A CN201810082289A CN107996305A CN 107996305 A CN107996305 A CN 107996305A CN 201810082289 A CN201810082289 A CN 201810082289A CN 107996305 A CN107996305 A CN 107996305A
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- seed
- stevia
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01C—PLANTING; SOWING; FERTILISING
- A01C1/00—Apparatus, or methods of use thereof, for testing or treating seed, roots, or the like, prior to sowing or planting
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01C—PLANTING; SOWING; FERTILISING
- A01C1/00—Apparatus, or methods of use thereof, for testing or treating seed, roots, or the like, prior to sowing or planting
- A01C1/08—Immunising seed
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01C—PLANTING; SOWING; FERTILISING
- A01C21/00—Methods of fertilising, sowing or planting
- A01C21/005—Following a specific plan, e.g. pattern
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- Environmental Sciences (AREA)
- Pretreatment Of Seeds And Plants (AREA)
- Cultivation Of Plants (AREA)
Abstract
The invention discloses a kind of Stevia seed method for culturing seedlings, it is related to agricultural plantation technology field, comprises the following steps：A, selection, processing seed；B, preparing nursery bed；C, seed is sowed；D, nursery stage is managed；E is transplanted；Stevia seed method for culturing seedlings of the present invention carries out nursery with seedlings nursing plate, according to the characteristic of Stevia seed, the stringent temperature and moisture controlled in seedling raising process, periodically sprinkles nutrient solution, ensure nutrient abundance, improve the bud ratio and survival rate of seedling of Stevia seed.
Description
Technical field
The present invention relates to agricultural plantation technology field, and in particular to a kind of Stevia seed method for culturing seedlings.
Background technology
Main component in STEVIA REBAUDIANA cured leaf is steviol glycoside, and not only sugariness is high, heat is low, also makees with certain pharmacology
With.Stevia mainly has treatment diabetes, control blood glucose, reduces blood pressure, is antitumor, anti diar rhea, raising immunity, promotes new
The effects such as old metabolism, have the effect of fine, to heart disease, pediatric saprodontia to obesity controlling disease, adjusting hydrochloric acid in gastric juice, recovery neural fatigue
Deng also there is significant curative effect, it is most important that it can eliminate the side effect of sucrose.Normal person's stevioside daily intake 4 milligrams/
It is free from side effects when below kg body weight to human body.South America, Southeast Asia, the Far East Area, stevioside are widely used in eating
Product and medicine field.
STEVIA REBAUDIANA has been widely used as medicine and meals.Steviol glycoside analog derivative also has antihypertensive, blood glucose, resists
Tumour, improves diarrhea and the clinical efficacy such as improves the immunity of the human body.With the food pharmacological property increase in value of STEVIA REBAUDIANA, STEVIA REBAUDIANA
Demand is also growing.
Stevia seed be highly prone to during seeding and seedling raising low temperature, damage to plants caused by sudden drop in temperature, the adverse circumstance environment such as high temperature influences, cause to educate
Germinating power, sprout time length are easily lost during seedling, germination percentage is reduced with germinating energy, and emergence is irregular, and seedling is poor, and seedling is dead
Rate height is died, influences the field-transplanting plantation in the germination and later stage of STEVIA REBAUDIANA.
The content of the invention
For problems of the prior art, the present invention provides a kind of Stevia seed method for culturing seedlings, sweet tea of the present invention
Leaf chrysanthemum seed seedling-raising method carries out nursery with seedlings nursing plate, according to the characteristic of Stevia seed, the stringent temperature controlled in seedling raising process
Degree and moisture, periodically sprinkle nutrient solution, it is ensured that nutrient is sufficient, improves the bud ratio and seedling survival of Stevia seed
Rate.
In order to achieve the above object, the present invention is achieved through the following technical solutions：
A kind of Stevia seed method for culturing seedlings, comprises the following steps：
A, selection, processing seed
(a1) choose seeds：Complete, full grains, epidermis are chosen without the high Stevia seed of damaged, varieties and characteristics；
(a2) the surface of the seed sterilizes：Seed is put into thimerosal, immersion 2-5 it is small when after, with clear water rinse 2-5 times, so
Dipped dry afterwards with dry gauze, it is spare；
(a3) soak seed：Seed after disinfection is put into 35-45 degrees Celsius of warm water, it is thin to prevent when immersion 30-50 is small
Bacterium infect, it is every 10 it is small when, filtering, with clear water rinse seed, exchange warm water for and continue to soak, remove the seed of floating on water；
(a4) vernalization：Seed after immersion and wet fine sand and wet plant ash are stirred, it is wrapped up the surface of the seed, so
After be put under ultraviolet lamp and irradiate 30-45 minutes and carry out disinfection after, under conditions of 28-35 degrees Celsius, place 20-30 it is small when；
B, preparing nursery bed
(b1) seedlings nursing plate being sized for is chosen, the soil of layer overlay 3-6 cm thicks, is sprinkled with sterilization in seedlings nursing plate
Liquid, after arrangement is smooth, after pouring water-soaked seedlings nursing plate, repaves last layer cultivation matrix above soil, waters, makes cultivation base quality guarantee
Hold moistening but not ponding；
C, seed is sowed
(c1) by the Stevia seed after vernalization in step (a4), uniformly it is sprinkled into seedlings nursing plate, stirs the soil in seedlings nursing plate
Earth buries Stevia seed to be overlying on inside seedlings nursing plate soil, then at the top of seedlings nursing plate layer overlay 0.3-0.8 cm thicks rice
Grass；
D, nursery stage is managed
(d1) moisture in seedlings nursing plate, carries out moisture supplement in time, soil matrix in seedlings nursing plate is kept wet
Profit, after germination is unearthed, you can remove top straw, during nursery, control temperature is small every 10-20 at 23-30 degrees Celsius
Ultra violet lamp of Shi Jinhang, irradiation time are 15-30 minutes, and a daylight light irradiation is carried out when 8-12 is small, are irradiated
When time is 10-16 small, every 2-4 days, one time of nutrition liquid is sprayed to STEVIA REBAUDIANA seedling, carries out nutrient；
E is transplanted
(e1) STEVIA REBAUDIANA growth of seedling is to when having 5-10 leaf, you can is colonized, transplanted.
Preferably, in the step (a2) soak for two thio thiuram of tetramethyl, potassium permanganate, formalin and
Deionized water is according to mass ratio 3:1：1:400 mixing compositions.
Preferably, the bactericidal liquid in the step (b1) is fenaminosulf, 84 thimerosals, Cosan and water according to mass ratio
0.8:2:2:100 mixing compositions.
Preferably, the cultivation matrix thickness in the step (b1) is 0.6-1.6 centimetres.
Preferably, the cultivation matrix in the step (b1) includes the raw material of following parts by weight meter：Attapulgite 25-30
Part, 8-15 parts of pericarp crushed material, 5-10 parts of quick lime, 15-24 parts of modified expanded perlite, 10-20 parts of chicken manure, rape cake 5-13
Part, 12-16 parts of mushroom residue, 4-8 parts of potassium breeze, 6-12 parts of urea, 4-9 parts of mica, 3-10 parts of ground phosphate rock and 1-3 parts of strain powder.
Preferably, the strain powder for saccharomycete, bacillus subtilis, lichengermium, streptomyces microflavus, phosphobacteria,
Nitrogen-fixing bacteria are according to mass ratio 2:0.8:0.5:1:1:2 mixing compositions.
Preferably, the preparation method of the modified expanded perlite is：(1) expanded perlite of 50-100 mesh is taken, is added
200-240 degrees Celsius is heated into seed-coating machine, and adds calcium carbonate powder, is stirred evenly；(2) then seed-coating machine one end is sprayed
Distilled water soaks expanded perlite, one end sprinkling plant straw powder, and is stirred continuously, up to modified expanded perlite.
Preferably, the weight ratio of the expanded perlite and calcium carbonate powder is 80:3.
Preferably, the ultra violet lamp wavelength in the ultra violet lamp wavelength and step (d1) in the step (a4) is
230-275 nanometers.
The present invention has following beneficial effect：
(1) Stevia seed method for culturing seedlings of the present invention carries out nursery with seedlings nursing plate, according to the characteristic of Stevia seed, strictly
The temperature and moisture in seedling raising process are controlled, periodically sprinkles nutrient solution, it is ensured that nutrient is sufficient, improves going out for Stevia seed
Bud rate and survival rate of seedling；
(2) present invention carries out surface sterilization to seed, reduces the microorganism of the surface of the seed, prevent seed after seed selection
The microorganism infection during rudiment, corruption are festered, during seed soaking, it is every 10 it is small when, change a clear water, prevent micro- life in warm water
Thing is grown, and is reduced percentage of seedgermination, is become sour smelly, with wet fine sand and wet plant ash the surface of the seed after seed soaking, in specified temp
Lower carry out vernalization, it is ensured that the bud ratio of Stevia seed；
(3) seedlings nursing plate topsoil of the present invention is added with one layer of cultivation matrix, and numerous organic matters are contained in cultivation matrix, battalion
Form point abundant, it is ensured that germination makes seedling root obtain sufficient nutrient, and root growth is sturdy, after contributing to seedling
The survival rate when growth and transplanting of phase；
(4) present invention is periodically irradiated, sterilizing when managing nursery stage using ultraviolet, it is ensured that seedlings nursing plate week
Enclose and remain a kind of environment most useful for growth of stevia rebaudiana, periodically sprinkle nutrient solution, make base of leaf battalion outside STEVIA REBAUDIANA seedling
Support and absorb sufficient, healthy growth.
Embodiment
The embodiment of the present invention is further described with reference to embodiment, following embodiments are only used for more
Technical scheme is clearly demonstrated, and is not intended to limit the protection scope of the present invention and limits the scope of the invention.
Embodiment 1
A kind of Stevia seed method for culturing seedlings, comprises the following steps：
A, selection, processing seed
(a1) choose seeds：Complete, full grains, epidermis are chosen without the high Stevia seed of damaged, varieties and characteristics；
(a2) the surface of the seed sterilizes：Seed is put into thimerosal, immersion 2 it is small when after, with clear water rinse 2 times, Ran Houyong
Dry gauze dips dry, spare；
(a3) soak seed：Seed after disinfection is put into 35 degrees Celsius of warm water, when immersion 30 is small, to prevent bacterium sense
Dye, it is every 10 it is small when, filtering, with clear water rinse seed, exchange warm water for and continue to soak, remove the seed of floating on water；
(a4) vernalization：Seed after immersion and wet fine sand and wet plant ash are stirred, it is wrapped up the surface of the seed, so
After be put under ultraviolet lamp and irradiate 30 minutes and carry out disinfection after, under conditions of 28 degrees Celsius, place 20 it is small when；
B, preparing nursery bed
(b1) seedlings nursing plate being sized for is chosen, the soil of 3 cm thick of layer overlay, is sprinkled with bactericidal liquid in seedlings nursing plate,
Arrange it is smooth after, after pouring water-soaked seedlings nursing plate, last layer cultivation matrix is repaved above soil, water, keep cultivation matrix
Moistening but not ponding；
C, seed is sowed
(c1) by the Stevia seed after vernalization in step (a4), uniformly it is sprinkled into seedlings nursing plate, stirs the soil in seedlings nursing plate
Earth buries Stevia seed to be overlying on inside seedlings nursing plate soil, then at the top of seedlings nursing plate 0.3 cm thick of layer overlay straw；
D, nursery stage is managed
(d1) moisture in seedlings nursing plate, carries out moisture supplement in time, soil matrix in seedlings nursing plate is kept wet
Profit, after germination is unearthed, you can remove top straw, during nursery, control temperature is at 23 degrees Celsius, when 10-20 is small
A ultra violet lamp is carried out, irradiation time is 15 minutes, and a daylight light irradiation, irradiation time 10 are carried out when 8 is small
Hour, every 2 days, one time of nutrition liquid is sprayed to STEVIA REBAUDIANA seedling, carries out nutrient；
E is transplanted
(e1) STEVIA REBAUDIANA growth of seedling is to when having 5 leaves, you can is colonized, transplanted.
In step (a2) soak for two thio thiuram of tetramethyl, potassium permanganate, formalin and deionized water according to
Mass ratio 3:1：1:400 mixing compositions.
Bactericidal liquid in step (b1) is fenaminosulf, 84 thimerosals, Cosan and water according to mass ratio 0.8:2:2:100 is mixed
It is combined into.
Cultivation matrix thickness in step (b1) is 0.6-1.6 centimetres.
Cultivation matrix in step (b1) includes the raw material of following parts by weight meter：25 parts of attapulgite, pericarp crushed material 8
Part, 5 parts of quick lime, 15 parts of modified expanded perlite, 10 parts of chicken manure, 5 parts of rape cake, 12 parts of mushroom residue, 4 parts of potassium breeze, urea 6
Part, 4 parts of mica, 3 parts of ground phosphate rock and 1 part of strain powder.
Strain powder is saccharomycete, bacillus subtilis, lichengermium, streptomyces microflavus, phosphobacteria, nitrogen-fixing bacteria according to matter
Measure ratio 2:0.8:0.5:1:1:2 mixing compositions.
The preparation method of modified expanded perlite is：(1) expanded perlite of 50 mesh is taken, is added in seed-coating machine and is heated to
200-240 degrees Celsius, and calcium carbonate powder is added, stir evenly；(2) then distilled water is sprayed by expanded pearlite in seed-coating machine one end
Rock soaks, one end sprinkling plant straw powder, and is stirred continuously, up to modified expanded perlite.
The weight ratio of expanded perlite and calcium carbonate powder is 80:3.
The ultra violet lamp wavelength in ultra violet lamp wavelength and step (d1) in step (a4) is 230 nanometers.
Embodiment 2
A kind of Stevia seed method for culturing seedlings, comprises the following steps：
A, selection, processing seed
(a1) choose seeds：Complete, full grains, epidermis are chosen without the high Stevia seed of damaged, varieties and characteristics；
(a2) the surface of the seed sterilizes：Seed is put into thimerosal, immersion 5 it is small when after, with clear water rinse 5 times, Ran Houyong
Dry gauze dips dry, spare；
(a3) soak seed：Seed after disinfection is put into 45 degrees Celsius of warm water, when immersion 50 is small, to prevent bacterium sense
Dye, it is every 10 it is small when, filtering, with clear water rinse seed, exchange warm water for and continue to soak, remove the seed of floating on water；
(a4) vernalization：Seed after immersion and wet fine sand and wet plant ash are stirred, it is wrapped up the surface of the seed, so
After be put under ultraviolet lamp and irradiate 45 minutes and carry out disinfection after, under conditions of 35 degrees Celsius, place 30 it is small when；
B, preparing nursery bed
(b1) seedlings nursing plate being sized for is chosen, the soil of 6 cm thick of layer overlay, is sprinkled with bactericidal liquid in seedlings nursing plate,
Arrange it is smooth after, after pouring water-soaked seedlings nursing plate, last layer cultivation matrix is repaved above soil, water, keep cultivation matrix
Moistening but not ponding；
C, seed is sowed
(c1) by the Stevia seed after vernalization in step (a4), uniformly it is sprinkled into seedlings nursing plate, stirs the soil in seedlings nursing plate
Earth buries Stevia seed to be overlying on inside seedlings nursing plate soil, then at the top of seedlings nursing plate 0.8 cm thick of layer overlay straw；
D, nursery stage is managed
(d1) moisture in seedlings nursing plate, carries out moisture supplement in time, soil matrix in seedlings nursing plate is kept wet
Profit, after germination is unearthed, you can remove top straw, during nursery, control temperature is carried out at 30 degrees Celsius when 20 is small
Ultra violet lamp, irradiation time are 30 minutes, and a daylight light irradiation is carried out when 12 is small, and irradiation time is small for 16
When, every 4 days, one time of nutrition liquid is sprayed to STEVIA REBAUDIANA seedling, carries out nutrient；
E is transplanted
(e1) STEVIA REBAUDIANA growth of seedling is to when having 10 leaves, you can is colonized, transplanted.
In step (a2) soak for two thio thiuram of tetramethyl, potassium permanganate, formalin and deionized water according to
Mass ratio 3:1：1:400 mixing compositions.
Bactericidal liquid in step (b1) is fenaminosulf, 84 thimerosals, Cosan and water according to mass ratio 0.8:2:2:100 is mixed
It is combined into.
Cultivation matrix thickness in step (b1) is 1.6 centimetres.
Cultivation matrix in step (b1) includes the raw material of following parts by weight meter：30 parts of attapulgite, pericarp crushed material 15
Part, 10 parts of quick lime, 24 parts of modified expanded perlite, 20 parts of chicken manure, 13 parts of rape cake, 16 parts of mushroom residue, 8 parts of potassium breeze, urine
3 parts of 12 parts of element, 9 parts of mica, 10 parts of ground phosphate rock and strain powder.
Strain powder is saccharomycete, bacillus subtilis, lichengermium, streptomyces microflavus, phosphobacteria, nitrogen-fixing bacteria according to matter
Measure ratio 2:0.8:0.5:1:1:2 mixing compositions.
The preparation method of modified expanded perlite is：(1) expanded perlite of 50-100 mesh is taken, is added in seed-coating machine and adds
Heat adds calcium carbonate powder to 200-240 degrees Celsius, stirs evenly；(2) then sprinkling distilled water in seed-coating machine one end will expand
Perlite soaks, one end sprinkling plant straw powder, and is stirred continuously, up to modified expanded perlite.
The weight ratio of expanded perlite and calcium carbonate powder is 80:3.
The ultra violet lamp wavelength in ultra violet lamp wavelength and step (d1) in step (a4) is 275 nanometers.
Embodiment 3
A kind of Stevia seed method for culturing seedlings, comprises the following steps：
A, selection, processing seed
(a1) choose seeds：Complete, full grains, epidermis are chosen without the high Stevia seed of damaged, varieties and characteristics；
(a2) the surface of the seed sterilizes：Seed is put into thimerosal, immersion 4 it is small when after, with clear water rinse 3 times, Ran Houyong
Dry gauze dips dry, spare；
(a3) soak seed：Seed after disinfection is put into 38 degrees Celsius of warm water, when immersion 35 is small, to prevent bacterium sense
Dye, it is every 10 it is small when, filtering, with clear water rinse seed, exchange warm water for and continue to soak, remove the seed of floating on water；
(a4) vernalization：Seed after immersion and wet fine sand and wet plant ash are stirred, it is wrapped up the surface of the seed, so
After be put under ultraviolet lamp and irradiate 40 minutes and carry out disinfection after, under conditions of 32 degrees Celsius, place 25 it is small when；
B, preparing nursery bed
(b1) seedlings nursing plate being sized for is chosen, the soil of 4 cm thick of layer overlay, is sprinkled with bactericidal liquid in seedlings nursing plate,
Arrange it is smooth after, after pouring water-soaked seedlings nursing plate, last layer cultivation matrix is repaved above soil, water, keep cultivation matrix
Moistening but not ponding；
C, seed is sowed
(c1) by the Stevia seed after vernalization in step (a4), uniformly it is sprinkled into seedlings nursing plate, stirs the soil in seedlings nursing plate
Earth buries Stevia seed to be overlying on inside seedlings nursing plate soil, then at the top of seedlings nursing plate 0.6 cm thick of layer overlay straw；
D, nursery stage is managed
(d1) moisture in seedlings nursing plate, carries out moisture supplement in time, soil matrix in seedlings nursing plate is kept wet
Profit, after germination is unearthed, you can remove top straw, during nursery, control temperature is carried out at 28 degrees Celsius when 15 is small
Ultra violet lamp, irradiation time are 20 minutes, and a daylight light irradiation is carried out when 10 is small, and irradiation time is small for 14
When, every 3 days, one time of nutrition liquid is sprayed to STEVIA REBAUDIANA seedling, carries out nutrient；
E is transplanted
(e1) STEVIA REBAUDIANA growth of seedling is to when having 6 leaves, you can is colonized, transplanted.
In step (a2) soak for two thio thiuram of tetramethyl, potassium permanganate, formalin and deionized water according to
Mass ratio 3:1：1:400 mixing compositions.
Bactericidal liquid in step (b1) is fenaminosulf, 84 thimerosals, Cosan and water according to mass ratio 0.8:2:2:100 is mixed
It is combined into.
Cultivation matrix thickness in step (b1) is 1.2 centimetres.
Cultivation matrix in step (b1) includes the raw material of following parts by weight meter：28 parts of attapulgite, pericarp crushed material 10
Part, 8 parts of quick lime, 20 parts of modified expanded perlite, 15 parts of chicken manure, 10 parts of rape cake, 13 parts of mushroom residue, 6 parts of potassium breeze, urea
1.8 parts of 9 parts, 6 parts of mica, 8 parts of ground phosphate rock and strain powder.
Strain powder is saccharomycete, bacillus subtilis, lichengermium, streptomyces microflavus, phosphobacteria, nitrogen-fixing bacteria according to matter
Measure ratio 2:0.8:0.5:1:1:2 mixing compositions.
The preparation method of modified expanded perlite is：(1) expanded perlite of 50-100 mesh is taken, is added in seed-coating machine and adds
Heat adds calcium carbonate powder to 220 degrees Celsius, stirs evenly；(2) then distilled water is sprayed by expanded pearlite in seed-coating machine one end
Rock soaks, one end sprinkling plant straw powder, and is stirred continuously, up to modified expanded perlite.
The weight ratio of expanded perlite and calcium carbonate powder is 80:3.
The ultra violet lamp wavelength in ultra violet lamp wavelength and step (d1) in step (a4) is 257 nanometers.
Application Example：
Will be without method for culturing seedlings nursery of the present invention, and the Stevia seed commonly to sow plants situation, it is real with passing through
STEVIA REBAUDIANA method for culturing seedlings nursery in a 1-3 is applied, the plantation situation of Stevia seed is compared, and comparative test result is recorded in down
Table 1；
Table 1：
| Experiment | Embodiment 1 | Embodiment 2 | Embodiment 3 | Common sowing |
| Seed number (grain) | 500 | 500 | 500 | 500 |
| Germination, which is unearthed, counts (strain) | 462 | 448 | 461 | 360 |
| Growth of seedling situation | Rhizome is uniformly sturdy | Rhizome is uniformly sturdy | Rhizome is uniformly sturdy | Seedling is very thin for part |
Contrast table 1, it can be seen that the germination percentage and seedling rhizome of the seed of the STEVIA REBAUDIANA of STEVIA REBAUDIANA method for culturing seedlings of the present invention
Growing state is superior to common type of seeding.
The foregoing is only a preferred embodiment of the present invention, is not intended to limit the invention, although with reference to foregoing reality
Apply example the present invention is described in detail, for those skilled in the art, it still can be to foregoing each implementation
Technical solution described in example is modified, or carries out equivalent substitution to which part technical characteristic.All essences in the present invention
With within principle, any modification, equivalent replacement, improvement and so on, should all be included in the protection scope of the present invention god.
Claims (9)
1. a kind of Stevia seed method for culturing seedlings, it is characterised in that comprise the following steps：
A, selection, processing seed
(a1) choose seeds：Complete, full grains, epidermis are chosen without the high Stevia seed of damaged, varieties and characteristics；
(a2) the surface of the seed sterilizes：Seed is put into thimerosal, immersion 2-5 it is small when after, with clear water rinse 2-5 times, Ran Houyong
Dry gauze dips dry, spare；
(a3) soak seed：Seed after disinfection is put into 35-45 degrees Celsius of warm water, when immersion 30-50 is small, to prevent bacterium sense
Dye, it is every 10 it is small when, filtering, with clear water rinse seed, exchange warm water for and continue to soak, remove the seed of floating on water；
(a4) vernalization：Seed after immersion and wet fine sand and wet plant ash are stirred, it is wrapped up the surface of the seed, Ran Houfang
After entering to irradiate 30-45 minutes and carry out disinfection under ultraviolet lamp, under conditions of 28-35 degrees Celsius, place 20-30 it is small when；
B, preparing nursery bed
(b1) seedlings nursing plate being sized for is chosen, the soil of layer overlay 3-6 cm thicks, is sprinkled with bactericidal liquid in seedlings nursing plate, whole
Pat it is whole after, after pouring water-soaked seedlings nursing plate, last layer cultivation matrix is repaved above soil, water, make cultivation matrix keep it is wet
Profit but not ponding；
C, seed is sowed
(c1) by the Stevia seed after vernalization in step (a4), uniformly it is sprinkled into seedlings nursing plate, the soil stirred in seedlings nursing plate makes
Stevia seed, which buries, to be overlying on inside seedlings nursing plate soil, then at the top of seedlings nursing plate layer overlay 0.3-0.8 cm thicks straw；
D, nursery stage is managed
(d1) moisture in seedlings nursing plate, carries out moisture supplement in time, soil matrix in seedlings nursing plate is kept moistening, kind
Son germination be unearthed after, you can remove top straw, during nursery, control temperature at 23-30 degrees Celsius, when 10-20 is small into
Ultra violet lamp of row, irradiation time are 15-30 minutes, and a daylight light irradiation, irradiation time are carried out when 8-12 is small
For 10-16 it is small when, every 2-4 days, to STEVIA REBAUDIANA seedling spray one time of nutrition liquid, carry out nutrient；
E is transplanted
(e1) STEVIA REBAUDIANA growth of seedling is to when having 5-10 leaf, you can is colonized, transplanted.
2. Stevia seed method for culturing seedlings according to claim 1, it is characterised in that soak is in the step (a2)
Two thio thiuram of tetramethyl, potassium permanganate, formalin and deionized water are according to mass ratio 3:1：1:400 mixing compositions.
3. Stevia seed method for culturing seedlings according to claim 1, it is characterised in that the bactericidal liquid in the step (b1)
It is fenaminosulf, 84 thimerosals, Cosan and water according to mass ratio 0.8:2:2:100 mixing compositions.
4. Stevia seed method for culturing seedlings according to claim 1, it is characterised in that the cultivation base in the step (b1)
Matter thickness is 0.6-1.6 centimetres.
5. Stevia seed method for culturing seedlings according to claim 1, it is characterised in that the cultivation base in the step (b1)
Matter includes the raw material of following parts by weight meter：25-30 parts of attapulgite, 8-15 parts of pericarp crushed material, 5-10 parts of quick lime, modification are swollen
Swollen perlite 15-24 parts, 10-20 parts of chicken manure, 5-13 parts of rape cake, 12-16 parts of mushroom residue, 4-8 parts of potassium breeze, urea 6-12
Part, 4-9 parts of mica, 3-10 parts of ground phosphate rock and 1-3 parts of strain powder.
6. Stevia seed method for culturing seedlings according to claim 5, it is characterised in that the strain powder is saccharomycete, withered
Careless bacillus, lichengermium, streptomyces microflavus, phosphobacteria, nitrogen-fixing bacteria are according to mass ratio 2:0.8:0.5:1:1:2 mixing groups
Into.
7. Stevia seed method for culturing seedlings according to claim 5, it is characterised in that the system of the modified expanded perlite
Preparation Method is：(1) expanded perlite of 50-100 mesh is taken, is added in seed-coating machine and is heated to 200-240 degrees Celsius, and add carbon
Sour calcium powder, stirs evenly；(2) then sprinkling distilled water in seed-coating machine one end soaks expanded perlite, one end sprinkling plant straw
Stalk powder, and be stirred continuously, up to modified expanded perlite.
8. Stevia seed method for culturing seedlings according to claim 7, it is characterised in that the expanded perlite and calcium carbonate
The weight ratio of powder is 80:3.
9. Stevia seed method for culturing seedlings according to claim 1, it is characterised in that the ultraviolet lamp in the step (a4)
Ultra violet lamp wavelength in illumination wavelength and step (d1) is 230-275 nanometers.
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
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| CN109258333A (en) * | 2018-10-31 | 2019-01-25 | 汪琴 | A kind of cultural method of nursing young plants in hothouses of STEVIA REBAUDIANA |
| CN109924097A (en) * | 2019-04-23 | 2019-06-25 | 黔南民族师范学院 | A kind of method of Cremastra appendiculata seed sowing nursery |
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| CN114557200A (en) * | 2022-01-24 | 2022-05-31 | 西北农林科技大学 | Cutting propagation method of compound-leaf grape |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109220049A (en) * | 2018-09-20 | 2019-01-18 | 四川盛世佳禾农业开发有限公司 | A kind of seed accelerating germination method |
| CN109258333A (en) * | 2018-10-31 | 2019-01-25 | 汪琴 | A kind of cultural method of nursing young plants in hothouses of STEVIA REBAUDIANA |
| CN109924097A (en) * | 2019-04-23 | 2019-06-25 | 黔南民族师范学院 | A kind of method of Cremastra appendiculata seed sowing nursery |
| CN110896702A (en) * | 2019-12-05 | 2020-03-24 | 河南省烟草公司许昌市公司 | Tobacco coated pelleted seed, preparation method and seedling growing method thereof |
| CN114557200A (en) * | 2022-01-24 | 2022-05-31 | 西北农林科技大学 | Cutting propagation method of compound-leaf grape |
| CN114557200B (en) * | 2022-01-24 | 2023-11-03 | 西北农林科技大学 | Cutting propagation method of compound grape |
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